The central nervous system 1 Flashcards
central nervous system
the processing centre of the body consisting of the brain and spinal cord
occipital
the major visual processing centre in the brain
contains the primary visual cortex, V1, which receives visual information from the eye and is relayed to the secondary processing areas that help us to interpret depth, distance, location and identity of viewed objects
parietal
responsible for integrating sensory information, including touch temperature, pressure and pain
because of this area we are able to process two point discrimination, direct from touch alone that two objects that are touching at skin at nearby points are distinct, rather than one
temporal
regions detected to processing sensory information(visual processing), recognising language(primary auditory cortex) and forming memories, learning and emotions (hippocampus)
frontal
where the higher executive functions including emotional regulation, planning, reasoning and problem solving occurs
famous case of frontal lobe dysfunction comes from Phineas Gage, who suffered from damage to his frontal lobe after a railway accident, before the accident he was described as responsible and hard-working but after he became disrespectful, foul-mouthed and had difficulty carrying out plans.
sagittal
a cut in the middle of the left and right hemispheres
from back to front, resulting in the left and right hemispheres disconnecting
coronal
a transverse cut to the middle of the brain
results in dividing the brain into front and back halves
horizontal
a parallel cut to the middle of the brain
results in the top half of the brain being cut off
medial
closer to the middle part of the brain
lateral
closer to the sides of the brain
dorsal
superior portion of the brain
top section
ventral
inferior portion of the brain
bottom section
anterior
front of the brain
posterior
back of the brain
hindbrain
lower back of the brain
including the brain stem, which connects the brain and spinal cord
life centre
midbrain
a vital connection point between the other areas of the brain
relay station
forebrain
the largest region of your brain
cognitive processing
cerebellum
in a cross section, this area appears like a layered wrinkly coral
it has two hemispheres with a dense layer of grey matter surrounding a inner layer of white matter
coordinates our sensations with responses from our muscles enabling our voluntary movement
limbic system
involved in our behavioural and emotional responses
especially those involved in survival
basal ganglia
a group of subcortical nuclei in the telencephalon
important parts of the motor system
